Karumonix, the Rat King (Commander) - Expensive Infect

Karumonix, the Rat King
Rank #381
52decks
As CommanderAs CardAverage DeckDecks
Bracket
All12345
Budget
Any$$$$
Jeremy Rowe
Mar 20, 2026
Jeremy Rowe
Building Rat Typal With Marrow-Gnawer
These Rats will do a lot more than pull your hair. Let's see what Marrow-Gnawer can do leading a swarm of Rats in Commander.
Deck Filters
Cardsphere
Archidekt
Commander Spellbook
Moxfield
Scryfall
MTGStocks
New Cards
High Synergy Cards
Top Cards
Game Changers
Creatures
Instants
Sorceries
Utility Artifacts
Enchantments
Planeswalkers
Utility Lands
Mana Artifacts
Lands
Back to Top
Decorum Dissertation
25%inclusion1 decks4 decks
20%synergy
High Synergy Cards
Marrow-Gnawer
100%inclusion52 decks52 decks
97%synergy
Swarmyard
96%inclusion50 decks52 decks
90%synergy
Piper of the Swarm
92%inclusion48 decks52 decks
85%synergy
Blightbelly Rat
85%inclusion44 decks52 decks
81%synergy
Ashcoat of the Shadow Swarm
81%inclusion42 decks52 decks
77%synergy
Infectious Inquiry
77%inclusion40 decks52 decks
74%synergy
Ichor Rats
77%inclusion40 decks52 decks
74%synergy
Pack Rat
79%inclusion41 decks52 decks
73%synergy
Lord Skitter, Sewer King
81%inclusion42 decks52 decks
72%synergy
Ogre Slumlord
81%inclusion42 decks52 decks
71%synergy
Top Cards
Jet Medallion
85%inclusion44 decks52 decks
23%synergy
Dark Ritual
71%inclusion37 decks52 decks
4%synergy
Vraska's Fall
69%inclusion36 decks52 decks
66%synergy
Phyresis Outbreak
69%inclusion36 decks52 decks
68%synergy
Cover of Darkness
63%inclusion33 decks52 decks
60%synergy
Septic Rats
60%inclusion31 decks52 decks
58%synergy
Bontu's Monument
58%inclusion30 decks52 decks
29%synergy
Herald's Horn
58%inclusion30 decks52 decks
52%synergy
Drown in Ichor
58%inclusion30 decks52 decks
54%synergy
Vraska, Betrayal's Sting
56%inclusion29 decks52 decks
53%synergy
Game Changers
Demonic Tutor
67%inclusion35 decks52 decks
40%synergy
Vampiric Tutor
54%inclusion28 decks52 decks
33%synergy
Bolas's Citadel
27%inclusion14 decks52 decks
-2%synergy
Ancient Tomb
17%inclusion9 decks52 decks
6%synergy
Imperial Seal
13%inclusion7 decks52 decks
7%synergy
Necropotence
12%inclusion6 decks52 decks
-3%synergy
The One Ring
5.8%inclusion3 decks52 decks
-4%synergy
Chrome Mox
5.8%inclusion3 decks52 decks
0%synergy
Creatures
Lord Skitter's Butcher
54%inclusion28 decks52 decks
51%synergy
Rancid Rats
52%inclusion27 decks52 decks
49%synergy
Ratcatcher
50%inclusion26 decks52 decks
47%synergy
Tangled Colony
44%inclusion23 decks52 decks
41%synergy
Crypt Ghast
44%inclusion23 decks52 decks
-3%synergy
Crypt Rats
42%inclusion22 decks52 decks
38%synergy
Stronghold Rats
40%inclusion21 decks52 decks
37%synergy
Rat Colony
40%inclusion21 decks52 decks
35%synergy
Typhoid Rats
38%inclusion20 decks52 decks
35%synergy
Persistent Marshstalker
37%inclusion18 decks49 decks
34%synergy
Changeling Outcast
37%inclusion19 decks52 decks
31%synergy
Nashi, Moon Sage's Scion
37%inclusion19 decks52 decks
33%synergy
Ayara, First of Locthwain
35%inclusion18 decks52 decks
9%synergy
Wave of Rats
33%inclusion17 decks52 decks
31%synergy
Burglar Rat
31%inclusion16 decks52 decks
20%synergy
Gnat Miser
31%inclusion16 decks52 decks
28%synergy
Species Specialist
29%inclusion15 decks52 decks
25%synergy
Ink-Eyes, Servant of Oni
29%inclusion15 decks52 decks
26%synergy
Yawgmoth, Thran Physician
29%inclusion15 decks52 decks
19%synergy
Rat King, Verminister
27%inclusion3 decks11 decks
24%synergy
Voracious Vermin
25%inclusion13 decks52 decks
22%synergy
Nezumi Informant
25%inclusion13 decks52 decks
18%synergy
Roaming Throne
21%inclusion11 decks52 decks
18%synergy
Chittering Witch
21%inclusion11 decks52 decks
17%synergy
Rat King, Pale Piper
20%inclusion2 decks10 decks
16%synergy
Gray Merchant of Asphodel
19%inclusion10 decks52 decks
-32%synergy
Throat Slitter
19%inclusion10 decks52 decks
17%synergy
Locust Miser
19%inclusion10 decks52 decks
18%synergy
Chittering Skitterling
19%inclusion10 decks52 decks
18%synergy
Relentless Rats
17%inclusion9 decks52 decks
16%synergy
Ruthless Radrat
17%inclusion9 decks52 decks
16%synergy
Swarm of Rats
17%inclusion9 decks52 decks
15%synergy
Nezumi Graverobber
15%inclusion8 decks52 decks
14%synergy
Pestilence Rats
15%inclusion8 decks52 decks
13%synergy
Old Flitterfang
15%inclusion8 decks52 decks
14%synergy
Engine Rat
14%inclusion5 decks36 decks
12%synergy
Filth
13%inclusion7 decks52 decks
11%synergy
Zodiac Rat
13%inclusion7 decks52 decks
13%synergy
Nezumi Prowler
13%inclusion7 decks52 decks
12%synergy
Skithiryx, the Blight Dragon
13%inclusion7 decks52 decks
12%synergy
Valley Rotcaller
12%inclusion6 decks49 decks
10%synergy
Zulaport Cutthroat
12%inclusion6 decks52 decks
-12%synergy
Twisted Sewer-Witch
12%inclusion6 decks52 decks
10%synergy
Nezumi Cutthroat
12%inclusion6 decks52 decks
11%synergy
Undercity Dire Rat
10%inclusion3 decks29 decks
8%synergy
Refurbished Familiar
10%inclusion5 decks50 decks
8%synergy
Boggart Trawler
10%inclusion5 decks51 decks
1%synergy
Midnight Reaper
10%inclusion5 decks52 decks
1%synergy
Rotting Rats
7.7%inclusion4 decks52 decks
5%synergy
Plague Myr
7.7%inclusion4 decks52 decks
6%synergy
Instants
Deadly Rollick
54%inclusion28 decks52 decks
29%synergy
Whisper of the Dross
40%inclusion21 decks52 decks
38%synergy
Go for the Throat
38%inclusion20 decks52 decks
16%synergy
Tainted Strike
35%inclusion18 decks52 decks
32%synergy
Malakir Rebirth
35%inclusion18 decks52 decks
12%synergy
Fell the Profane
31%inclusion16 decks51 decks
13%synergy
Village Rites
25%inclusion13 decks52 decks
0%synergy
Defile
23%inclusion12 decks52 decks
-13%synergy
Tragic Slip
23%inclusion12 decks52 decks
3%synergy
Grim Affliction
21%inclusion11 decks52 decks
19%synergy
Infernal Grasp
17%inclusion9 decks52 decks
-8%synergy
Withering Torment
16%inclusion7 decks45 decks
-16%synergy
Anoint with Affliction
15%inclusion8 decks52 decks
15%synergy
Snuff Out
13%inclusion7 decks52 decks
0%synergy
Bitter Triumph
13%inclusion7 decks52 decks
4%synergy
Corrupted Conviction
12%inclusion6 decks52 decks
-1%synergy
Hagra Mauling
10%inclusion5 decks52 decks
5%synergy
Hero's Downfall
10%inclusion5 decks52 decks
3%synergy
Cabal Ritual
10%inclusion5 decks52 decks
-9%synergy
Sudden Spoiling
10%inclusion5 decks52 decks
1%synergy
Sheoldred's Edict
7.7%inclusion4 decks52 decks
-7%synergy
Imp's Mischief
7.7%inclusion4 decks52 decks
-17%synergy
Deadly Dispute
7.7%inclusion4 decks52 decks
-18%synergy
Doom Blade
7.7%inclusion4 decks52 decks
0%synergy
Culling the Weak
7.7%inclusion4 decks52 decks
-8%synergy
Withering Boon
7.7%inclusion4 decks52 decks
3%synergy
Foul-Tongue Shriek
7.7%inclusion4 decks52 decks
6%synergy
Zuko's Exile
6.3%inclusion1 decks16 decks
6%synergy
Breathe Your Last
6.0%inclusion3 decks50 decks
4%synergy
Consuming Corruption
5.9%inclusion3 decks51 decks
-10%synergy
Force of Despair
5.8%inclusion3 decks52 decks
-2%synergy
Rat Out
5.8%inclusion3 decks52 decks
4%synergy
Not Dead After All
5.8%inclusion3 decks52 decks
-6%synergy
Supernatural Stamina
5.8%inclusion3 decks52 decks
-2%synergy
Virulent Wound
5.8%inclusion3 decks52 decks
5%synergy
Murder
5.8%inclusion3 decks52 decks
-4%synergy
Plumb the Forbidden
5.8%inclusion3 decks52 decks
1%synergy
Offer Immortality
5.8%inclusion3 decks52 decks
4%synergy
Curtains' Call
5.8%inclusion3 decks52 decks
4%synergy
Dismember
5.8%inclusion3 decks52 decks
-5%synergy
Sorceries
Feed the Swarm
48%inclusion25 decks52 decks
-2%synergy
Kindred Dominance
48%inclusion25 decks52 decks
43%synergy
Swarmyard Massacre
42%inclusion20 decks48 decks
39%synergy
Patriarch's Bidding
33%inclusion17 decks52 decks
28%synergy
Bloodline Bidding
31%inclusion4 decks13 decks
26%synergy
Damnation
27%inclusion14 decks52 decks
6%synergy
Reanimate
25%inclusion13 decks52 decks
-15%synergy
Plague of Vermin
25%inclusion13 decks52 decks
23%synergy
Toxic Deluge
23%inclusion12 decks52 decks
-14%synergy
Night's Whisper
21%inclusion11 decks52 decks
-4%synergy
Sign in Blood
19%inclusion10 decks52 decks
-16%synergy
Revenge of the Rats
19%inclusion8 decks42 decks
16%synergy
Diabolic Intent
17%inclusion9 decks52 decks
2%synergy
Pact of the Serpent
17%inclusion9 decks52 decks
16%synergy
Vat Emergence
15%inclusion8 decks52 decks
14%synergy
Torment of Hailfire
15%inclusion8 decks52 decks
0%synergy
Haunting Voyage
15%inclusion8 decks52 decks
14%synergy
Agadeem's Awakening
15%inclusion8 decks52 decks
8%synergy
Crippling Fear
15%inclusion8 decks52 decks
12%synergy
Echoing Return
13%inclusion7 decks52 decks
10%synergy
Geth's Summons
13%inclusion7 decks52 decks
13%synergy
Insatiable Avarice
12%inclusion6 decks52 decks
0%synergy
Shredder's Technique
10%inclusion1 decks10 decks
6%synergy
Bubbling Muck
10%inclusion5 decks52 decks
-6%synergy
Unearth
10%inclusion5 decks52 decks
1%synergy
Read the Bones
10%inclusion5 decks52 decks
-7%synergy
Grim Tutor
10%inclusion5 decks52 decks
-2%synergy
Diabolic Tutor
7.7%inclusion4 decks52 decks
-7%synergy
Gruesome Fate
7.7%inclusion4 decks52 decks
6%synergy
Desperate Plea
6.7%inclusion1 decks15 decks
6%synergy
Forever Young
5.8%inclusion3 decks52 decks
4%synergy
Feed the Infection
5.8%inclusion3 decks52 decks
5%synergy
Exsanguinate
5.8%inclusion3 decks52 decks
-19%synergy
Caress of Phyrexia
5.8%inclusion3 decks52 decks
5%synergy
Syphon Mind
5.8%inclusion3 decks52 decks
-7%synergy
Beseech the Mirror
5.8%inclusion3 decks52 decks
-1%synergy
Utility Artifacts
Skullclamp
50%inclusion26 decks52 decks
28%synergy
Chronicle of Victory
38%inclusion5 decks13 decks
36%synergy
Contagion Engine
33%inclusion17 decks52 decks
31%synergy
Thrumming Stone
29%inclusion15 decks52 decks
25%synergy
Sword of Truth and Justice
27%inclusion14 decks52 decks
26%synergy
Lightning Greaves
25%inclusion13 decks52 decks
-9%synergy
Contagion Clasp
23%inclusion12 decks52 decks
21%synergy
Vanquisher's Banner
23%inclusion12 decks52 decks
19%synergy
Whip of Erebos
17%inclusion9 decks52 decks
6%synergy
Door of Destinies
17%inclusion9 decks52 decks
15%synergy
Grafted Exoskeleton
17%inclusion9 decks52 decks
16%synergy
Expedition Map
15%inclusion8 decks52 decks
4%synergy
Gathering Stone
15%inclusion2 decks13 decks
14%synergy
Coat of Arms
13%inclusion7 decks52 decks
11%synergy
Thornbite Staff
13%inclusion7 decks52 decks
11%synergy
Akroma's Memorial
12%inclusion6 decks52 decks
11%synergy
Swiftfoot Boots
12%inclusion6 decks52 decks
-20%synergy
The Darkness Crystal
10%inclusion3 decks29 decks
-10%synergy
Prosthetic Injector
10%inclusion5 decks52 decks
9%synergy
Eldrazi Monument
10%inclusion5 decks52 decks
8%synergy
Sensei's Divining Top
7.7%inclusion4 decks52 decks
0%synergy
Ashnod's Altar
7.7%inclusion4 decks52 decks
-12%synergy
Wayfarer's Bauble
5.8%inclusion3 decks52 decks
-9%synergy
Aetherflux Reservoir
5.8%inclusion3 decks52 decks
-4%synergy
Scroll Rack
5.8%inclusion3 decks52 decks
5%synergy
Phyrexian Altar
5.8%inclusion3 decks52 decks
-8%synergy
Recon Craft Theta
5.8%inclusion3 decks52 decks
6%synergy
Sword of Hearth and Home
5.8%inclusion3 decks52 decks
4%synergy
Whispersilk Cloak
5.8%inclusion3 decks52 decks
0%synergy
Enchantments
Phyrexian Arena
44%inclusion23 decks52 decks
5%synergy
Grave Pact
42%inclusion22 decks52 decks
23%synergy
Black Market Connections
40%inclusion21 decks52 decks
16%synergy
Necrogen Communion
31%inclusion16 decks52 decks
29%synergy
Haunted One
25%inclusion13 decks52 decks
22%synergy
Black Market
21%inclusion11 decks52 decks
0%synergy
Dictate of Erebos
17%inclusion9 decks52 decks
6%synergy
Phyresis
17%inclusion9 decks52 decks
15%synergy
Oversold Cemetery
17%inclusion9 decks52 decks
12%synergy
Glistening Oil
12%inclusion6 decks52 decks
11%synergy
Dark Prophecy
12%inclusion6 decks52 decks
8%synergy
Phyrexian Reclamation
10%inclusion5 decks52 decks
0%synergy
Bad Moon
10%inclusion5 decks52 decks
6%synergy
The Meathook Massacre
7.7%inclusion4 decks52 decks
-10%synergy
Bastion of Remembrance
7.7%inclusion4 decks52 decks
-9%synergy
Contamination
5.8%inclusion3 decks52 decks
2%synergy
Relic Putrescence
5.8%inclusion3 decks52 decks
6%synergy
Tribute to Horobi
5.8%inclusion3 decks52 decks
5%synergy
No Mercy
5.8%inclusion3 decks52 decks
-1%synergy
Lord Skitter's Blessing
5.8%inclusion3 decks52 decks
5%synergy
Planeswalkers
Liliana of the Dark Realms
15%inclusion8 decks52 decks
1%synergy
Utility Lands
Cabal Coffers
92%inclusion48 decks52 decks
38%synergy
Nykthos, Shrine to Nyx
83%inclusion43 decks52 decks
53%synergy
Urborg, Tomb of Yawgmoth
83%inclusion43 decks52 decks
45%synergy
Karn's Bastion
69%inclusion36 decks52 decks
65%synergy
Cabal Stronghold
63%inclusion33 decks52 decks
29%synergy
Bojuka Bog
60%inclusion31 decks52 decks
13%synergy
Phyrexian Tower
58%inclusion30 decks52 decks
32%synergy
Three Tree City
47%inclusion23 decks49 decks
42%synergy
Mudflat Village
44%inclusion22 decks50 decks
41%synergy
Shizo, Death's Storehouse
37%inclusion19 decks52 decks
26%synergy
Witch's Cottage
33%inclusion17 decks52 decks
8%synergy
Takenuma, Abandoned Mire
31%inclusion16 decks52 decks
15%synergy
Rogue's Passage
31%inclusion16 decks52 decks
12%synergy
Crypt of Agadeem
29%inclusion15 decks52 decks
18%synergy
Inkmoth Nexus
29%inclusion15 decks52 decks
28%synergy
Mortuary Mire
25%inclusion13 decks52 decks
12%synergy
Secret Tunnel
25%inclusion4 decks16 decks
24%synergy
Reliquary Tower
25%inclusion13 decks52 decks
-5%synergy
Castle Locthwain
23%inclusion12 decks52 decks
6%synergy
War Room
15%inclusion8 decks52 decks
-1%synergy
Minas Morgul, Dark Fortress
15%inclusion8 decks52 decks
12%synergy
Volrath's Stronghold
13%inclusion7 decks52 decks
10%synergy
Urza's Saga
12%inclusion6 decks52 decks
4%synergy
Access Tunnel
12%inclusion6 decks52 decks
9%synergy
Mutavault
10%inclusion5 decks52 decks
9%synergy
Deserted Temple
10%inclusion5 decks52 decks
5%synergy
Lake of the Dead
10%inclusion5 decks52 decks
5%synergy
Barren Moor
7.7%inclusion4 decks52 decks
-2%synergy
Strip Mine
7.7%inclusion4 decks52 decks
5%synergy
Midgar, City of Mako
6.9%inclusion2 decks29 decks
-4%synergy
Vault of Whispers
5.8%inclusion3 decks52 decks
0%synergy
Vesuva
5.8%inclusion3 decks52 decks
3%synergy
The Black Gate
5.8%inclusion3 decks52 decks
2%synergy
Temple of the False God
5.8%inclusion3 decks52 decks
-2%synergy
Everglades
5.8%inclusion3 decks52 decks
4%synergy
Mana Artifacts
Sol Ring
85%inclusion44 decks52 decks
-1%synergy
Glistening Sphere
65%inclusion34 decks52 decks
64%synergy
Arcane Signet
42%inclusion22 decks52 decks
-19%synergy
The Soul Stone
41%inclusion9 decks22 decks
26%synergy
Staff of Compleation
31%inclusion16 decks52 decks
29%synergy
Throne of Eldraine
21%inclusion11 decks52 decks
11%synergy
Patchwork Banner
18%inclusion9 decks49 decks
14%synergy
Firdoch Core
15%inclusion2 decks13 decks
15%synergy
Gauntlet of Power
12%inclusion6 decks52 decks
8%synergy
Thought Vessel
12%inclusion6 decks52 decks
-14%synergy
Nyx Lotus
12%inclusion6 decks52 decks
5%synergy
Caged Sun
10%inclusion5 decks52 decks
-2%synergy
Mind Stone
10%inclusion5 decks52 decks
-19%synergy
Extraplanar Lens
10%inclusion5 decks52 decks
5%synergy
White Lotus Tile
6.3%inclusion1 decks16 decks
6%synergy
Charcoal Diamond
5.8%inclusion3 decks52 decks
-17%synergy
Jeweled Lotus
5.8%inclusion3 decks52 decks
5%synergy
Heraldic Banner
5.8%inclusion3 decks52 decks
0%synergy
Mox Opal
5.8%inclusion3 decks52 decks
2%synergy
Lands
Swamp
85%inclusion44 decks52 decks
-11%synergy
Cavern of Souls
60%inclusion31 decks52 decks
53%synergy
Path of Ancestry
42%inclusion22 decks52 decks
37%synergy
Malakir Rebirth
35%inclusion18 decks52 decks
12%synergy
Fell the Profane
31%inclusion16 decks51 decks
13%synergy
Myriad Landscape
19%inclusion10 decks52 decks
-6%synergy
Snow-Covered Swamp
17%inclusion9 decks52 decks
11%synergy
Agadeem's Awakening
15%inclusion8 decks52 decks
8%synergy
Boggart Trawler
10%inclusion5 decks51 decks
1%synergy
Hagra Mauling
10%inclusion5 decks52 decks
5%synergy
Command Tower
10%inclusion5 decks52 decks
4%synergy
Urza's Cave
7.7%inclusion4 decks52 decks
-1%synergy
Mirrex
7.7%inclusion4 decks52 decks
7%synergy
About UsContactPrivacy PolicyTerms of Service
Space Cow MediaArchidektCardsphereCommander SpellbookFABRECSpellvoid
Space Cow MediaArchidektCommander's Herald
Commander SpellbookFABRECSpellvoid
EDHREC is unofficial Fan Content permitted under the Fan Content Policy. Not approved/endorsed by Wizards. Portions of the materials used are property of Wizards of the Coast. ©Wizards of the Coast LLC.
next@15 test